#5612 ὠρύομαι oruomai {o-roo'-om-ahee}

 middle voice of an apparently primary verb; TDNT - n/a; v

—Greek Word Study (Transliteration-Pronunciation Etymology & Grammar)

 1) to roar, to howl (of a lion, wolf, dog, and other beasts)
    1a) of men, to raise a loud and inarticulate cry: either of grief,
        or of joy
 2) to sing with a loud voice

—Thayer's (New Testament Greek-English Lexicon)

—Strong's (Greek Dictionary of the New Testament)

—NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries

 AV - roaring 1; 1

—Exhaustive Concordance (KJV Translation Frequency & Location)